Floor



No.749,440." PATEN'TED JAN. 12, 1904.

P. H. JACKSON.

FLOOR, SIDEWALK, ROOF, 0R LIKE-SUPPORTS.

APPLIOATION rum) unis, 1903. 7 NO 1101121..

2 SHEETS-SHEET l.

fNo. 749,440. PATENTED JAN. 12, 1904. P. H. JACKSON. 3

'FLOOR, SIDEWALK, ROOF; 0R LIKE SUPPORTS.

IIIIIIIIIIIIIIIII AY 13, 1903.

Patented January 12, 1904.

UNITED STATES] PATENT OFFICE.

PETER H. JACKSON, OF SAN FRANCISCO, CALIFORNIA.

FLOOFL'SIDEWALK, ROOF, OR- LIKE SUPPORT.

SPECIFICATION forming part of Letters Patent No. 749,440, dated January 12, 1904. Application filed May 13, 1903. Serial Nd. 156,888. No model.)

confined to the injured parts without disturb ing the remainder of the surface, such injuries being caused from heavy weights falling upon them. or from portions being cut out in case of fires.

It consists of sheets or plates of metal forming independent channel-shaped bearers filled with cement with transversely-crossing inverted channel-strips interlocking with the bearers, bracing them against lateral deflection and forming sections into which the top surfaces,

made of plates of glass or lenses, may be fixed. It also comprises details of construction which will be more fully explained by reference to the accompanying drawings, in which Figure 1 is a perspective view showing my 7 invention with sheet connections between bearers. Fig. 2 is a similar view with independent transverse beam connections. Figs. 3 and 4 show means to prevent buckling or separation from the cement filling. Fig. 5 shows vertical folds and reinforcement of channeled beam.

The object of my present invention is to provide a construction which will increase the stiffness and strength of the metal-supporting parts, using a minimumamount of metal, also to facilitate the laying up of the parts and reducing the cost thereof and in a means for preventing leakage. The bearers A are formed of sheets or plates of metal bent into a channel form'which have a bottom and may either have parallel vertical sides, or these sides may be made convergent-or diverging from the bottom upwardly. Up0n these bearers are laid transverse supports, which may be formed by bending plates of metal into a channel form, and these channeled beams B are inverted and are cut out where they cross the'bearers A, so as to interlock therewith, the open faces of these transverse beams being presented downwardly, as shown in the drawings. strengthen the bearers and prevent their spreading and breaking away from the cement filling. The channel-bearers are lilled with cement, and when the top of surfaces .4 is leveled evenly with the cement mixture by pressing the downturned edges into said mixture plates of glass or lenses are set in them either with or without projections extending down into the open spaces between the bearers and cross-pieces. g

It will be understood that the cross-pieces B may be of such length as to extend across a number of the bearers, interlocking and bracing with each at the point of crossing by means of the notches 2, or these cross-pieces may be made short and of sufficient length to extend from one bearer to the other, having the notches formed near the ends, so that each cross-bar will rest upon and interlock with two adjacent bearers A.

In some cases the space between the bearers may be covered by fiat sheets or plates of metal having holes made through them intermediate between the bearers to receive the glass either in the form of plates or lenses, Fig. 1. In such cases the ends of these plates/are bent downward at right angles, so as to hook over the edges of the channeled bearers, and after the latter-have been filled with cement in a plastic state these turned-down edges 3 are forced into the cement mixture, thus interlocking the plates and the bearers and maintaining the whole in place. The bearers are thus in the form of deep gutters filled with the hydraulic cement, which is an absorbent of water, and any water entering between the edgesof theplates thus laid will be led olf in the channeled bearers and may be discharged over the outside walls, so that it cannot leak down through to the inside surface of the wall. (Shown in Fig. 2.)

Where the bearer is employed to support a. load the strain upon it is similar to that common to loaded beams, the bottom part being subjected to a tensional strain and the upper They brace and v stroying the strength. To overcome this difficulty, 1 reinforce the top portion by bending the metal on the top at right angles, making one or more folds, as shown at 5, or it may be bent over to form a plurality of vertical folds, as shown at 6, this reinforcement of the thinupper edges giving a greatly-increased strength to resist compression. In

. order to further maintain the integrity of from one bearer to the bearers constructed in this manner, I clamp the sides together near the top either by straps,-'bolts, rivets, or other equivalent de-- vices, as shown at 7, and in some cases I may reinforce the, top of the bearer by longitudinally-disposed bars of iron or steel, as shown at 10, or the parts of one side being lapped over and riveted on the opposite side, as at 11. The disposition of the plates 4, extending other, having their edges turned down into the cement -filling of the bearers, is well shown in Fig. 1, and thesides of the bearers at the top are bolted through at regular distances apart to prevent their spreading, as shown at 12.

As shown in Fig. 2, the sidewalk, roof, or floor, which may have a slight inclination, is

so formed with the channeled cement-filled,

beams lying in the direction of. the descent, that any water entering between the edges of the plates or superposed covering will pass into these channeled bearers, the outer ends of which may be supported on angle-iron of any thickness, as at 13, this angle-iron having channels cut out to correspond with the position of the bearers A, so rest in these cut-out portions and extend far enough through to discharge the water on to the horizontal exterior portion of the angleiron, thus leading it away from the inside surface of the Wall beneath. If the illuminating tile or surface islevel, these angle-irons may be employed at both ends.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is i l. A structure forfloors, roofs, sidewalks and the like consisting of straight channeled, trough-shaped bearers closed at the bottom,

open atthe top and having a filling of cement mixture, said bearers .having the upper edges bent or folded and approximately at right angles with the sides to resist the compressive that they may cement mixture.

2. A surface for floors, roofs, sidewalks and the like consisting of sheet metal bent into the form of a channel with closed bottom and upwardly-extended sides, said sides having the upper edges bent or folded with relation thereto to resist compressive force, a filling of cement within the troughs thus formed and transverseplates connecting said bearers and forming a support for illuminating-surfaces which are fixed thereon.

3. A surface for floors, roofs, sidewalks and the like consisting of sheet metal bent into the form of a channel with closed bottom and upwardly-extended sides, said sides having the upper edges bent or folded with relation thereto to resist compressive force, a filling of cement within the troughs thus formed, transverse plates connecting said bearers and forming a' support for illuminating-surfaces strain and tendency to buckle, and filled with which are fixed thereon, said plates having their edges turned downwardly and embedded in the cement within the troughs and forming a substantially level surface with the body of cement exposed between the contiguous edges of the plates.

4. A floor sidewalk or like surface consisting of channeled bearers closed at the bottom having the upper edges bent or folded at the top to resist compressive force, and a filling of cement, transversely-disposed plates extending between adjacent bearers having their edges bent and adapted to enter the cement filling of the bearers and to interlock therewith and form a substantially level continuous surface, and lighting-surfaces or lenses fixed in said plates between the bearers.

5. A sidewalk, floor or roof lighting structure consisting of channeled bearers open at the top and having a filling of cement, transverse bars or plates connecting said bearers and forming supports for lighting-surfaces 0r lenses, said bearers having bolt or strap con- .nections between their sides whereby they are prevented from spreading and becoming disengaged from the cement filling.

6. A sidewalk, floor and roof construction consisting of channeled bearers formed of sheet metal with close. bottoms and 'open tops and a filling of cement, said bearers having the upper edges folded or corrugated to resist c mpressing strains, and bolts or straps by w iich opposite sides are connected together, and transversely-disposed plates or beams having downturned folds and extending between adjacent bearers, said downwardly-extending folds entering and being fixed by the cement contained in the channel-bearers, said plates having openings adapted to receive and support the illuminating tiles or lenses substantially as described.

7. A floor, roof and sidewalk structure con-' sisting of channeled trough-shaped bearers closed at the bottom and open at the top, with a filling of cement mixture, connecting-plates forming a top therefor having their meeting edges in line above the channels, slotted angle-iron outer supports through which the bearers extend and act as water-conductors.

8. A floor roof or sidewalk structure consaid bars are embedded and fiat plates or bars extending transversely between the bearers,

said plates havingtheir edges turned down- 5 wardly at right angles and embedded in the cement or concrete filling of the bearers.

' In witness whereof I have hereunto set my sifstilng of stralightlchilmnelled bearers flormed. hand. 7

. o s eet meta wi e ose bottom an open tops, said bearers having bent or folded up- PETER JACKSON per edgesto resist compression, and strips or Witncsses: bars 10 fixed vertically between the sides of S. H. NOURSE,

the bearers, a filling of concrete within which J ESSIE C. BRODIE. 

